Figure 1
From: Complex and dynamic patterns of Wnt pathway gene expression in the developing chick forebrain
Dorsalmost expression - Wnt1 and Wnt6. (A-G) Expression of Wnt1 (A-F) and Wnt6 (G-L) in HH13 (G,J), HH14 (A,D), HH15 (H,K), HH16 (B,E), HH19 (I,L) and HH20 (C,F) chick embryo brains. Lateral (A-C,G-I) and dorsal (D-F,J-L) views are shown; anterior points to the right. Note the broadening of Wnt1 expression at its anterior limit between HH14 and HH16 (arrowheads, A,B,D,E). Note expression of Wnt1 anterior to the epiphysis (arrow) and along the dorsal border of the pallium (arrowhead) at HH19 (C,F). Note the expression of Wnt6 in the evaginating pineal gland at HH19 (arrow and inset, I). Punctate expression of Wnt6 in (G-K) is likely to be in cranial ectoderm that was not completely removed from the neural tube [63]. Scale bars represent 0.2 mm. Abbreviations: di, diencephalon; hb, hindbrain; hy, hypothalamus; mb, midbrain; tel, telencephalon.